Friday October 18th. 1805
Took one altitude of the Sun's upper limb
|
|
|
|
|
h |
m |
s |
|
| Alt |
28°. |
22′. |
15″. |
at |
8. |
1. |
24 |
A. M. |
Observed time and distance of Sun and Moon's nearest limbs Sun East.—
|
|
Time |
|
|
Distance |
|
|
h |
m |
s |
|
|
|
| AM |
9. |
37. |
46 |
47°. |
15′. |
30″. |
|
". |
40. |
32 |
". |
14. |
15 |
|
". |
41. |
47 |
". |
14. |
" |
|
". |
42. |
55 |
". |
13. |
30 |
|
". |
43. |
44 |
". |
12. |
45 |
|
". |
46. |
2 |
". |
12. |
30 |
|
". |
47. |
18 |
". |
12. |
0 |
|
". |
48. |
35 |
". |
11. |
45 |
|
". |
49. |
45 |
". |
11. |
15 |
|
". |
50. |
53 |
". |
11. |
" |
|
". |
52. |
0 |
". |
9. |
30 |
|
". |
53. |
46 |
". |
9. |
30 |
Took an altitude of the Suns upper Limb
|
|
|
|
h |
m |
s |
|
| 58°. |
34′. |
45″ |
at |
10. |
3. |
59 |
A. M. |
Took a Meridian Altitude Suns upper Limb which gave 68°. 57′. 30″.—
The Latitude produced is 46°. 15′. 13.″ 9 North
I measured the wedth of each river by angles as follows i. e.
The Columbia River is 960 yards wide
The Lewis's River is 575 do do
Imedeately below the junction the Columbia River is from one to
three miles wide including the Islands.
[Lewis apparently took fewer observations during the winter
at Fort Clatsop than while at Fort Mandan. For such as are
recorded, see text of the journals proper, January 1 to March 23,
1806. On the return journey he marks "Point of Observation
N°. 55," on April 1, 1806. After a few observations (embodied
in the text of the journals), to correct his instruments, the next
point of observation is dated May 25, 1806, and situated on
the Kooskooskee (see text of journals). At the Quamash
Flats, he made observations, all embodied in text of the
journals, save the following, which is found on the first flyleaf
of Codex L.—Ed].
by octant ☉'s L. L. 51°. 20′ June 9th. 1806.
